One By One — synonyms, definition

1. one by one (Adverb)

by the piece individually on an individual basis one after another one at a time separately severally singly

one by one (Adverb) — In single file. ex. "the prisoners came out one by one"

one by one (Adverb) — One piece at a time. ex. "she sold the plates one by one"

one by one (Adverb) — Apart from others. ex. "taken one by one, the rooms were, in fact, square"